Channeling-tool.



P. SJOSTROM & A. MOBERG.

CHANNELING TOOL- APPLICATION FILED MAY 20. 1915.

1,171,985. Patented Feb. 15,1916.

Fig.1 I 12 .5.

1 19.51 15 ii i if Inventors: I'eber ,S 'josLrom, Jiugust .Mbberg,

UNITED STATES PATENT orrion; T

PETER SJOSTROM AND AUGUST MYOBERG, or MAPLEWOOD, MASSACHUSETTS. I

CHANNELING-TOOL.

Application filed May 20, 1915. Serial No. 29,423;

To all whom it may concern. r

Be it known'that we, PET R SJOsTROM, a subject of the King of Sweden, and AUGUST Momma, acitizen of the United States of America, residents of Maplewood the county of Middlesex and Commonwealth of h lassachusetts,have invented certain new and useful Improvements in Channeling-Tools; of which the following is a specification.

This invention relates to hand tools for cutting channels in soles of boots and shoes and is especially adapted for use in repair shops. j w The object of-the'present invention is to provide atool of'this class in which various shaped cutting knives may be used and in which thefknife may be readily adjusted either longitudinally or about its axis and then clamped in such adjusted position.

' Another object of the invention is the provision of a tool of this character in which the cutting'head is pivoted to the operating handle so that the tool may follow the sole and cut a uniform depth of channel regardless of-the angular position of the handle during the cutting operation.

T lie-invention consists of certain novel features of construction and arrangement of parts which will be fully understood byreference to the description of the drawings and to the'claims hereinafter given.

- Of the drawings, Figure 1.-represents a rear elevation of a tool embodying the principles of the present invention. Fig. 2 rep resents aside elevation of the same. Fig. 3

represents a front elevation of the same with the cutting head thereof in section. Fig. 4 represents a longitudinal section of the same the cutting planebeing on line 4-4: on Fig. 1. Fig. 5 represents an inverted plan of the same. Fig. 6- represents a sectional elevation of a portion of the same the cutting Fig. 8 represents a plan view of the San-1e, and Fig- 9 represents an end view of the same...

Similar characters designate like parts throughout the ings.

Inthe drawings cured thereto a flatsided' shank ll'provided several figures of the draw- 7 10 is a handle having se Patented Feb. 15,1916. I

with a transverse pivot pin 12 the ends of which extend beyond the side'faces of said Shank and are positioned in a bifurcatedcub ter head 13, the arms of which straddle saidshank 11, as'show'n in Fig. 4. w v

' The cutter head'13is provided with a downwardly extending flange 14 adapted to bear against the edge of a -shoe sole'during the cutting operation. i 1 f On the flanged side of the cutter head is a split boss '15 having its'outer end coneshaped while the periphery thereof is threaded, as indicated at 16'. Throughthe boss 15 1s a cylindrical hole 17in which is mounted the "cylindrical shank 18 of the cutting knife 19. v The cutting "edge ofthe i knife 19 may be of any desired shape according to the-work to be done. I In the embodiment shownin the drawings the knife 19 is provided with a cutting edge i 20 approximately perpendicular to the inner face of the flange 14: and'with another cutting edge 21 substantially parallel with said inner face of the flange 14, said cutting edges 20-21 coacting to cut an L'-shaped channel in the face of a shoe sole.

The cutting edge 21' may be adjusted to-l ward and from the flange 14 thereby determining the distance from the edge of a sole that the channel will be cut-therein.

1 The cutting edge 20 may be adjusted to cut different depths of channels by rotating. the

shank 18 about its axis. w

VVhenthe necessary adjustments .of the knife 19 have been made it is locked in adjusted position bym eans of the nut 22 which is provided with a-cone-shaped inner wall 23,

adapted to engage with the conical endof the split hub or boss 15 and force the va rious'sectio-ns thereofinto gripping contact with the shank 18 of said knife.

The outer end of the shank 18 ispro-vided I i with a plurality of perforations 24 in either :ofpwhich a pin orother. device may be inserted in order to readily adjustthe cutting knife when the nut 22 has, been moved sufhciently to release the gripping contact of the sections of the boss 15 thereon.

It will be observed by an inspection of the drawings that the cutting edge 21 is approximately parallel with the pivot pin 12 and slightly in advance thereof during the cutting operation. 7

By pivoting the cutter head 13 to the handle 10 the knife 19 is permitted to travel through the material always at thesame distance from the face thereof regardless of the angle that the handle 10 mayassume as the operator moves the tool over the sole with the flange in contact with theedge thereof.

The depth of the channel is determined by the distancethe cutting edge 20 is located beneath the bearing portion 25of the head 13, the portion 25 being moved over the sole in contact with its upper face during the channel cutting operation.

This makes a very convenient tool for op- 1. Ina device of the class described,the-

combination of a handle; a member connect? ed'to one end thereof by a transverse pivot and having a flange formed integral. therewith adapted to engage the edge of a sole; and a knife carried by said member with a cutting edge approximately perpendicular to the inner face of said flange and I opposite thereto.

2.1m a device of the class described, the combination of a handle; a member connected to one end thereof by a transverse pivot and having a flange adapted to engage the edge of a sole; a knife member carried by said member with a cuttingedge; at one end approximately perpendicular to the inner faceof said. flange and adjustable endwise toward and from said flange; and means for locking said knife member in adjusted po-= sition.

3; In a device of the class described, the combination of a handle; a member connect ed to one end thereof by a transverse. pivot and having a flange adapted to engage the edge of'ai sole; a knife havinga shank described our invention, we-

mounted in said member and provided with a euttingedge approximately perpendicular to the inner face of said flange, said knife being adjustableabout the axis of said shank; and means for locking said knife in adjusted position.

4:. In a device of the class described,-the combination of a handle; a pin perpendicular to the axis thereof; a bifurcated member mounted on said pin and having a sole-edgeengaging flange; a knife" carried by said? member with a cutting edge extending across the forked'end thereof; and means,

whereby the knife may be adjusted toward and from-said flange and locked in adjusted position. I

5. In a device of the class described, the combination of a:handle; a pin perpendicw. lar to the axis thereof; a bifurcated member mounted on said pin and havinga sole-edge- I engaging flange; a cylindrical member :car-, ried by said bifurcated member and having at one endthereof a knife with a cuttingedge extending across the forked end of said bifurcated member; and meanswhereby said cylindrical member may be adjusted faboue its own axis, may be-moved endwise and may be locked in adjusted position.

6. In a device of the'class described, the

combination. of ,a handle; a membericon-wnected to the end thereofdoya transverse pivot and having a sole-edge-engagingflange; a hub. on the outer facezof said flange; a knife mounted in said hub with a cutting edgeextending inwardly fromthe v inner face of said flange; and means forlocking said knife in adjusted position within said hub. r i

7. In a device of the class described, the

combination of a handle; a member connected to the end thereof by :a transverse; pivot and having. a sole-edge-engaging flange; a hub on the. outer. face of said flange; a knife with a cylindrical shank mounted in said hub :with a cuttingcedge extendinginwardlyfrom the'inner face of said flange; and means for locking the shank of said knife in adjusted position within said hub. V V

8.In a device of the class described-{the combination ofa handle; a memberrconnected to the end thereof by agtransverse pivot and having, a sole-edge-enga'ging flange; a split threaded hubon the outer face of said flange sand iprovided'withfa tapered end; a knife with a: cylindrical shankimountedin; said hub with a cutting: edge extending inwardly from the inner face-of said flange; and a nut threaded to, said hub and provided with. a tapered bore adapted toengagetheend of said hub and force it into clamping engagement withthe shank ofzsaid knife.

9. In a device of the class described, the of said *knife in adjusted position Within combination of a handle; a member connectsaid hub.

ed to the end thereof by a transverse pivot Signed by us at 4: Post Oflice Sq., Boston,

and having a sole-edge-engaging flange; a Mass, this 15th day of May, 1915. 5 hub on the outer face of said flange; a knife with a cylindrical shank mounted in said I hub With a cutting edge extending inwardly from the inner face of said flange; means Witnesses: whereby said shank may be adjusted about WALTER E. LOMBARD,

10 its axis; and means for locking the shank EDWARD F. ALLEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

